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All Journal Pendas : Jurnah Ilmiah Pendidikan Dasar JURNAL PENDIDIKAN MIPA Jurnal Ilmiah Profesi Pendidikan Mandalika Mathematics and Educations Journal Journal of Classroom Action Research Jurnal Pendidikan, Sains, Geologi, dan Geofisika (GeoScienceEd Journal) Griya Journal of Mathematics Education and Application Rengganis Jurnal Pengabdian Masyarakat Jurnal Pendidikan dan Pengabdian Masyarakat Darma Diksani: Jurnal Pengabdian Ilmu Pendidikan, Sosial, dan Humaniora Prosiding Seminar Nasional Unimus Jurnal Pendidikan MIPA Sigma&Mu: Journal of Mathematics, Statistics and Data Science
Nani Kurniati
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Agriculture, Biological Sciences & Forestry Humanities Chemistry Economics, Econometrics & Finance Education Engineering Health Professions Languange, Linguistic, Communication & Media Mathematics Nursing Physics Public Health Social Sciences Other

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Journal : Jurnal Pendidikan MIPA

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Problem Solving Skills of Mathematics Education Students with Lack Number Sense Ability Arjudin, Arjudin; Turmuzi, Muhammad; Kurniati, Nani; Wulandari, Nourma Pramestie
Jurnal Pendidikan MIPA Vol 25, No 1 (2024): Jurnal Pendidikan MIPA
Publisher : FKIP Universitas Lampung

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Abstract

Abstract: Problem-solving in mathematics is a fundamental skill that must be mastered by individuals. However, previous research indicates that students' problem-solving abilities tend to be moderate to low. Many factors contribute to this, including the factor of number sense ability. The objective of this study is to describe how number sense and problem-solving skills are used by mathematics education students with low number sense ability in solving linear programming problems using the simplex method. This research is qualitative descriptive involving 36 third-year mathematics education students as participants. Subjects were selected using purposive sampling technique based on a number sense ability test to identify those with low number sense ability. Participants were given an advanced test involving linear programming problems solved using the simplex method. The results indicate that mathematics education students with low number sense ability struggle to solve problems accurately. Stages of problem-solving that were not performed effectively included gathering information, planning, and implementing the plan. Furthermore, students did not engage in the reviewing stage. Moreover, students were not flexible in manipulating numbers, especially when dealing with large numbers. As a result, more time was required for computations, and the iteration process in the simplex method could not be effectively completed.        Keywords: linear programming, number sense, number sense ability, problem solving, simplex method.DOI: https://dx.doi.org/10.23960/jpmipa/v25i1.pp103-115
Co-Authors Afandi, Noval Agustina, Arianti Ainun, Yusri Ambia, Nurul Amelia Kusuma Amrullah Amrullah Amrullah Amrullah Amrullah Anisah Apriani, Amelia Aprilia, Ririn Arjudin Arjudin Arjudin Baidowi Baidowi Baidowi Baidowi Baiq Julia Setyaningrum Cahyani, Nurriza Indah Chaerunnisa Sumiatun Efendi Chopifah Rosdianti Dhuha, Shela Hadri Dhuha Dina, Yana Roza Dwi Novitasari Dwi Novitasari Eka Kurniawan Erika Fitriana Erly Ekayanti Rosyida, Erly Ekayanti Fadila, Laila Fahmi Firdaus Harry Soeprianto Haryani, Fitria I Nyoman Pujawan Ida Royani Intan Kertiyani, Ni Made Ismi Andriyani, Ismi Junaidi Junaidi Junaidi Junaidi Ketut Sarjana KETUT SARJANA, KETUT Kurniawan, Eka Laila Hayati Laila Hayati, Laila Lu’luilmaknun, Ulfa Lu’luilmaknun, Ulfa Miftahul Janah Mulya Lestari Muniro, Nisrina Nabila Aulia Priangka Ni Kadek Nirmala Wilwatikta Ni Made Intan Kertiyani Nia Agustina Nilza Humaira Salsabila Nourma Paramestie Wulandari Nurfahrani, Nurfahrani nurul ambia Nurul Fatmawati Nurul Hikmah NURUL HIKMAH Nyoman Sridana Nyoman Sridana Prasetyo, Erik Bagus Ratna Dwi Aryani Ratna Yulis Tyaningsih Rosmala Dewi, Lale Amrini Salsabila, Nilza Humaira Sapitri, Evi Sasa Apriliska SITI ANISA RUSMANIA Soepriyanto, Harry Sri Subarinah Sri Subarinah, Sri Sridana Sridana Sripatmi Sripatmi Sripatmi Sudi Prayitno Sujaya, Ketut Ary Sulisyani, Anis Suliyani, Anis Syafitri, Rekha Hesti Syahril Ramdhan Syahrul Azmi Syahrul Azmi Tabita Wahyu T Tabita Wahyu Triutami Triutami, Tabita Wahyu Ulfa Lu'luilmaknun Ulfa Lu’luilmaknun ULUL AZMI Wafasari Wahidaturrahmi Wahidaturrahmi Wahidaturrahmi, Wahidaturrahmi Wulandari, Nourma Pramestie Yulis Tyaningsih, Ratna Yunita Septriana Yunita Septriyana Anwar